Home / 289,991,320.52-400,188,000.02-157,833,264.64

Finding the Fourth Proportional to 289,991,320.52, 400,188,000.02 and 157,833,264.64

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Solution

The fourth proportional to 289,991,320.52, 400,188,000.02 and 157,833,264.64 is: 217,809,893.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,991,320.52 : 400,188,000.02 = 157,833,264.64 : x
  2. Step 2: Convert to fraction form
    289,991,320.52/400,188,000.02 = 157,833,264.64/x
  3. Step 3: Cross multiply
    289,991,320.52x = 400,188,000.02 × 157,833,264.64
  4. Step 4: Simplify right side
    289,991,320.52x = 63,162,978,512,908,976
  5. Step 5: Solve for x
    x = 63,162,978,512,908,976/289,991,320.52
  6. Step 6: Final answer
    x = 217,809,893.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.